Virtual Friends Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 8165 Accepted Submission(s): 2345 Problem Description These days, you can do all sorts of things online. For example, you can u
Find MaxXorSum Time Limit:2000MS Memory Limit:65535KB 64bit IO Format: Description Given n non-negative integers, you need to find two integers a and b that a xor b is maximum. xor is exclusive-or. Input Input starts with an integer T(T <= ) denoting
题目链接: I. Special Squares There are some points and lines parellel to x-axis or y-axis on the plane. If arbitrary chosen two lines parallel to x-axis and two lines parallel to y-axis, one rectangle, or sometimes a square, will be formed. If a square i